How to Calculate Your Peak Flow Normal Reading

had asthma when he was a kid And I kind of grew out of it but there was a machine where they tested your breathing. It was a birthday cake with a bunch of candles on it and so they were like breathe into the thing and try and blow out all the candles But you have to do it all in one breath. My ability for that was fine. Well give us a give us a blow Hmm, okay ... my peak is five fifty or five hundred which was low for my age range I got five sixty Nice, let's do one more average it out. Yep. Oh Oh five seventy so that's how nice about mine. Yeah, I'll search the peak flow normal reading